there is no way that is possible. that many different kinds of ores that close together wouldn't happen...

Minecraft is full of many surprising things, my friend. And it's not limited to artificial creations either.

I once found a waterfall in a snow biome that had swelled enough to cover the very large entrance to a cave system before Notch temporarily deleted the biome code until 1.0 was released. Of course, at first, I thought it was a fake, but out of a curiousity to find the source I climbed the mountain it was flowing over. Once I got to the top, my jaw dropped until it was level with the floor. There it was, an innocent, natural lake of water with a hole in one side.